Confusing signs from my best friend

So she knows I'm bi but more inclined to girls. She knows that I'm attracted to her. I confessed last February. Before Feb, we never held hands, nor cuddled, but after my confession.. we got really, really close.

We held hands all the time and often leans on my shoulder when we commute. We often cuddle when we sleep (because we're roommates), either of our bed is empty most of the time because it's either she's in mine, or vice versa. It didn't stop there.. She started stroking my hand whenever we held hands then we kept on going on lunch dates and museum dates because the campus museum has free admission on Wednesdays.

Then our other roommates asked her if we were together, because all of them knew about me. She denied them and told me that conversation, taht's why i know. Until one night we went out for drinks and I got wasted, she rejected me head-on, and I kissed her, she pushed me away but I pursued, and she gave in.

Our friendship went shakey after that but we got close again anyway.. then she started acting really sexual when we sleep. She strokes my back or my tummy which really turns me on. One time she was actually grinding on my leg and puts pressure on my nether region because our legs are often tangled when we sleep. Then she started touching me elsewhere. I never touched her because I respect our friendship. But somehow, she says she isn't aware of what she does when we sleep. One time she woke up while she was doing stuff to me, she got upset and didn't talk to me for hours, like it was my fault. ><

When I asked her, she says we're just friends. i don't know how I should feel nor what I should do. Is it even possible to do sexual acts to someone else while you're asleep? I really don't know.

---------- Post added 26th Jul 2015 at 04:50 AM ----------

It would really help if some of you guys gave insights. I haven't been this confused since I found out I was attracted to girls ><